I've been using a MotoComm AB-1M the last few seasons with good results.
The biggest problem with this unit is the switches. I end up replacing one
every year to year and a half. But at $160 complete except for a GMRS radio
it's been excellent. I plug my MP3 player into it, and my cell phone. I love
this thing and can't praise it enough..
Ralph L. Angelo Jr.
Author of "Help! they're all out to get me!
The motorcyclists guide to surviving the everyday world."
ISBN# 1-4137-6187-9
http://helptheyreallouttogetme.com